“…Risk factors for in‐hospital death in this series were NYHA class III/IV and hemodialysis. Other reported factors include sex, major cardiovascular injury during re‐entry, concomitant coronary artery bypass grafting, advanced age, decreased left ventricular function, endocarditis, replacement of a mechanical valve, advanced NYHA class, emergency surgery, chronic obstructive pulmonary disease, renal failure, and peripheral vascular disease . Early referral in older patients with NYHA class I/II may help to decrease hospital mortality in these higher risk patients .…”